The Heavy Duty Switchpack provides 15 VDC operating voltage to all low voltage, 15 VDC,occupancy sensors and daylighting controllers. A single switchpack can provide power for up to five sensors. Up to ten switchpacks can be connected to one sensor for control of multiple circuits. Isolated contacts may also be used to control HVAC, contactors, motors, etc.Replaces separate transformers and relaysZero-crossing circuit provides increased durability, especially with today’s high inrush loadsCapable of switching up to 20 amps Rated for Ballast, Tungsten and Motor LoadsSuitable for Plenum use